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- 原 潔
- 神戸商船大学
書誌事項
- タイトル別名
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- A Model for Estimating the Trip Distribution of Ships : An Application of Entropy Concept
- ミナト カン コウツウリョウ ブンプ オ スイテイ スル ホウホウ--エントロピー ガイネン ノ オウヨウ
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抄録
Author proposed a model for estimating the trip distribution between each pair of centroids such as harbours and straits. The model was mainly based on the concept of entropy and the trip distribution was derived only from traffic volume through harbours and straits. The model was numerically applied to ships on marine traffic routes in Osaka Bay in order to study model feasibility. The trip distributions in Osaka Bay for various sizes of ships by the model was compared with those observed by a large scale traffic survey there and their agreements were found to be good except for the ship size larger than 3, 000T. The reasons why trips at sea can be expressed by the simpler model than that at roads seems to be due to the simplicity of traffic routes and objects and no alternative means of transport but ship. It would be capable by the model for us to evaluate such problems as the encounter rate of the crossing in a bay and the contribution of increase of traffic volume at one harbour to the other.
収録刊行物
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- The Journal of Japan Institute of Navigation
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The Journal of Japan Institute of Navigation 52 (0), 1-7, 1974
公益社団法人 日本航海学会
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詳細情報 詳細情報について
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- CRID
- 1390282680457654912
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- NII論文ID
- 110006548303
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- NII書誌ID
- AN00188841
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- DOI
- 10.9749/jin.52.1
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- ISSN
- 21873275
- 03887405
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- NDL書誌ID
- 1579702
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可